The steel fireproof door is relatively heavy, and has high requirements for door jambs and hinges. The steel fire door is impact resistant, and the structural strength can withstand long-term collision without reducing fire protection, and can withstand the impact of fire hydrant.

ZHTdoors fire doors, 31 years of production experience in fire doors and Windows. The main UL fire doors, EN fire doors,  BS EN fire doors, etc.,.We have certification.ZHTdoors support OEM and free design.Our advantages:good quality, factory price, good service.Welcome to consult us.